Kitchener



E. SCHNEIDER May 2; 1939.

KITCHENER Filed NOV. 1, 1957 Patented May 2, 1939 am ia ewm aaaa ii" .Application November "1, 192 37,"SeriabNowi'liQQii I; l

a zciai r w]; net-273i? v This invention relatesto' a novel kitchene'rand more particularly to a; novel device for condi tionin'g or cookingsubstarfices, such as foods, by "the application of he'a'ti One object of the invention is to provide a-"novel device of this'character, which is constructed and arranged to condition or cook substances, such as foods; a manncrto retain allof the desirable essences-of the 's'aid substances that are lost'by prior and conventional methods; Inthe case of"ioods, for*cxainple, the flavoring and" nuj tritious vapors, which ar'c"'normally permitted;

toesc'ape' are by the-present process retained and serve'to impart desirable qualities-to the cooked iood' I Another; object-of the'iriventionisto provide a novel conditioning device by means of which the vapors and steam thatare generated or given ofi by the heatingof a substance, are consumed by circulative, incincrating process.

A further object of the invention is to provide a device of the character above mentioned in which the escape of odors vapors, steam, etc. into the atmosphere is prevented, thereby elimihating the undesirable effects and inconvenience normally caused by the escape of such agents.

The invention may be clearly understood by reference to the accompanying drawing, in which Fig. 1 is a perspective view of one form of the device with a portion thereof broken away for clarity of illustration;

Fig. 2 is a sectional view taken transversely of the device along line 2-2 of Fig. 1; and I Fig. 3 is a sectional view of a-modified form 0 the device. a l i I Referring to Figs. 1 and 2 of the'drawing, in the specific form of the device there illustrated, there is provided an outer casing vl comprising side walls 2, a top 3, a rear wall 4, and a partial front wall 5. A horizontal panel 6, which is preferably of the cross-section shape illustrated, is attached to the walls of the casing, forming a compartment which is provided with a hinged door 1 at the front to permit access to the compartment. The sides. the back. and the top of this compartment are thus completely and permanently closed, there being no vents,chimneys or other openings, and when the door is'closed it completely seals the front wall of the compartment from the outside air, as will be explained presently. I

Within the compartment defined as above described, there is provided a walled structure of inverted U-shape comprising side walls 8 and a' top 9 which are spaced respectively from the side wallsand toptof the casi' g" l', tlius'providiri g a jacket -like space fill between the i inner and outer walls about the inner compartment. Thefpurp'os'e of thiswill be-jEeXplainedipresently. *Theinne'ri walled structure is supported upon and secured to'the panel 6 which serves as a bottom orbase for theinher compartment. w A "In further" accordance with-the invention, there are providedi'apertures' It in *the side walls 8 near the: top thereof andthere are'alsoprovided lower" apertures or passages. l2," i portions of 1 which are substantially vertically aligned with tneapertures L As -iliustratedf' thefside walls 8 may be cut away to providefeet-like' eittensions 1 The central horizontalportion df the panert gas burners or electrical heating units. Restricted openings. l5a are provided adjacent the heat burners and to the compartment l4.

At the front of the device, there is provided an inverted U-shaped member I'B which serves to close the jacket-like space ill at the front thereof. In order to seal the oven-like compartment 14 when the door 1 is closed, themember l6 may be provided with a recess l1 and the door may be provided'with a complemental rib l8, which may be formed of resilient material. When the door is closed, the rib l8' seats in the recess I? thus sealing the compartment H against admission of air. a

In the operation of the device, thesubstances sources to permit a restricted inflow of air to the such as foods to be conditioned or cooked are placed within the oven-like compartment 14 in. any suitable manner, for example such substances may be placed in conventional cooking pans which may be supported upon racks or other supporting means. If desired, removable wire shelves may be provided for this purpose, as in conventional ovens. As the substance is subjected to the cooking effect of the heat from the sources 15. the vapors, and/or steams, which are generated ,or given off, pass upward and out through the upper apertures H to the jacket-likespace I0. Due to the pressure effect within the space H, the vapors and steam which are not initially incinerated are caused to flow downward through 13"aridat {the same time, providetheelongated 1,

the side passages I and are forced through the lower openings I! back into the oven-like space ll. The circulated vapors or steam are consumed by incineration within the compartment I4, the complete consumption of the vapors or steam taking place during the repeated circulation thereof. It is important to note that the heating source or sources of my device serve a three-fold purpose; first, it cooks the substance; second. it causes circulatiori oi the vapors or steam; and third, itincinerates the circulated vapor'sor steam, thereby eliminating the necessity 01' allowing the vapors or steam to escape into the surrounding atmosphere.-

It is important to note'thatthe device when in operation is completely closed, there being no. vents, chimneys or other passagesleadi'ng to the atmosphere. Thus, all of the products derived from the cooking operation, are retained within the device.

It will, be noted, that, the top, space -1 la ,0! the jacket-like space It serves only asa heat insulating space, andii'desired, this top space may utumn be;filled with -heat-insulating material. t a y ,In Fig. 3, there is shown a simple form of the device which is b'o'x like. in shape and; ,corre sponds to the upper portion or-the device of Figs.

1;and -2. In-this -modified form of the device,

the bottom in is provided-with openings 20,,to,

accommodate heat sources,- such as. gas burners or electric heating This device'is adapted.

tobe placed upon, a conventional gas or electric 1 stove wit h tlf egasburners or'ielectric heating units below the iopenings-ll Thus, there is pro- 5videdajsimple devicetoruse ontheconventional stove. Otherwise, this device issimilarincom lstnuctton and operation to-the deviceabove described.

the invention illustrated between said-casing and said compartment, said I walled structure having upper and lower openings connecting said compartment with said pas- I sages, the bottom of ,said compartment having provision for means for heating the interior of the compartment, to thereby cook a substance within said compartment and cause cyclic circulation and incineration of vapors andsteam.

-2.- In a-device of the class, described, a walled structure defining a cooking compartment and having a door opening permitting access to said compartment, and another walled structure gexterior to said first walledstructure and defining passages between .the .walls oiysaid structures,

said first walled structure havingupper and lower openings connecting said compartment with-said passages, the bottom otsaid compart ment having provision for means for heating the interionof the compartment, said exterior walled lstructure-being tree oi escapeopenings to,the

atmosphere, whereby a substance within said compartment is cooked by cyclic circulation or vapors and steainfiowing downward-through said and by incineration oi the vapors and steam within compartment. 7, 

